The wireless mesh technology was proven to be very reliable in this very harsh environment, with high RF occlusion from both ground and vegetation. While typically, the link range between two sensors is as high as 10-kilometres in direct line of sight, this range was severely reduced to 500-meters in dense deciduous forest conditions. As a result, communication paths to the gateway are often indirect and can only be achieved by hopping from one sensor to another through multiple paths.
Redundancy of messages flooded into the network at periodic intervals ensured timely delivery of the data packet. This type of WSN (wireless sensors network) relies on the nodes themselves, extending the network which removes the necessity to install specialized high gain antennas. As a result, the installation and maintenance cost was significantly reduced.
- Battery operation on 3x D cell alkaline batteries with 5-years autonomy
- No solar panels
- No specialized high gain antennas
- One network connecting all sensors
- Real-time data acquisition
- Reliability in high RF occlusion settings